When you delete a person in Chronicle, the information is never really removed from the system; it’s just make invisible so you don’t see it during your normal operations. Because of this, if you ever need to get someone back that you deleted or made inactive, you can do it from the people tab.
Click the drop down and select deleted then enter the person's name.
Double click on the name to open the person file and select undelete.
You can get deleted organizations back using the same process listed above.